在做形状动画时,添加形状提示可按键盘中的()。
A.Ctrl+H
B.Shift+H
C.Alt+H
D.Ctrl+Shift+H
参考答案:D
具有突发性剑突下阵发性钻顶样剧烈疼痛症状的病症是
A.胆囊结石
B.胆管结石
C.胆囊癌
D.胆管癌
E.胆道蛔虫
Radiation spreads a fire by().
A.transferring heat across an unobstructed space
B.heated gases flowing through ventilation systems
C.burning liquids flowing into another space
D.transmitting the heat of a fire through the ship's metal